Finding the Fourth Proportional to 30,644.62, 42,294.15 and 18,714.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,644.62 : 42,294.15 = 18,714.82 : x
2. Step 2: Convert to fraction form
   30,644.62/42,294.15 = 18,714.82/x
3. Step 3: Cross multiply
   30,644.62x = 42,294.15 × 18,714.82
4. Step 4: Simplify right side
   30,644.62x = 791,527,404.30
5. Step 5: Solve for x
   x = 791,527,404.30/30,644.62
6. Step 6: Final answer
   x = 25,829.25